Home / 1,209,964.42-1,666,149.68-1,183,112.16

Finding the Fourth Proportional to 1,209,964.42, 1,666,149.68 and 1,183,112.16

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Solution

The fourth proportional to 1,209,964.42, 1,666,149.68 and 1,183,112.16 is: 1,629,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,964.42 : 1,666,149.68 = 1,183,112.16 : x
  2. Step 2: Convert to fraction form
    1,209,964.42/1,666,149.68 = 1,183,112.16/x
  3. Step 3: Cross multiply
    1,209,964.42x = 1,666,149.68 × 1,183,112.16
  4. Step 4: Simplify right side
    1,209,964.42x = 1,971,241,945,913.02
  5. Step 5: Solve for x
    x = 1,971,241,945,913.02/1,209,964.42
  6. Step 6: Final answer
    x = 1,629,173.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.